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17 questions · No time limit
17 marks · +1 per question
This free separate review mixes work and tank-flow decisions. It follows Work Units Combined Rates and Efficiency, Changing Teams and Finishing the Remaining Work, and Pipes Leaks and Net Tank Flow. It introduces no new method. Attempt the questions before reading the key. Use untimed learning mode first; you may pause and return to the relevant lesson. For each answer, write a short line naming the whole or capacity, active rate, relevant interval and final check. Do not choose a method from “worker” or “pipe” alone. These learning questions award one mark for a correct answer and zero otherwise, with no negative marking or pass cutoff. They are not a simulated full RRB paper or a statement of official examination marking. All questions are original.
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